Signatures and docstrings are not displayed properly when hovering on function in VSCode (maybe in other IDEs as well))

[emmanuelle]

In VSCode, hovering over a function or class name displays its signature and docstring. For some reason, this does not seem to work with dash_core_components or dash_html_components objects, see for example the screenshot below.

I'm not sure why, since this is supposed to work out of the box (I checked that it works even for a function defined in the same module).